JP2003309028A - Internal-combustion engine ignition unit - Google Patents
Internal-combustion engine ignition unitInfo
- Publication number
- JP2003309028A JP2003309028A JP2002111001A JP2002111001A JP2003309028A JP 2003309028 A JP2003309028 A JP 2003309028A JP 2002111001 A JP2002111001 A JP 2002111001A JP 2002111001 A JP2002111001 A JP 2002111001A JP 2003309028 A JP2003309028 A JP 2003309028A
- Authority
- JP
- Japan
- Prior art keywords
- igniter
- combustion engine
- ignition device
- internal combustion
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/4847—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a wedge bond
- H01L2224/48472—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a wedge bond the other connecting portion not on the bonding area also being a wedge bond, i.e. wedge-to-wedge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1305—Bipolar Junction Transistor [BJT]
- H01L2924/13055—Insulated gate bipolar transistor [IGBT]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/30—Technical effects
- H01L2924/301—Electrical effects
- H01L2924/3011—Impedance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、内燃機関用点火
装置に用いる１次電流遮断制御するイグナイタに関し、
特にイグナイタと点火コイル部とを点火装置ケースで一
体化した内燃機関用点火装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an igniter for primary current interruption control used in an internal combustion engine ignition device,
In particular, the present invention relates to an internal combustion engine ignition device in which an igniter and an ignition coil unit are integrated in an ignition device case.
【０００２】[0002]
【従来の技術】従来より内燃機関の点火装置において
は、イグナイタと点火コイル部とを、同一の点火装置ケ
ース内に備えたものが提案されており、特に近時の一つ
の点火プラグに一つの点火装置を配置するものについて
普及している。このような点火装置に用いるイグナイタ
構造を図５に、また当該図５に示したイグナイタの、内
燃機関用点火装置の点火コイル部への搭載方法を図６に
示す。前述の通り、内燃機関用点火装置では点火コイル
部とイグナイタとは互いに不可欠なものであり、これら
２つがセットとなるように使用されている。2. Description of the Related Art Conventionally, as an ignition device for an internal combustion engine, it has been proposed that an igniter and an ignition coil portion are provided in the same ignition device case, and one ignition plug is recently provided. It is widely used to arrange an ignition device. FIG. 5 shows an igniter structure used in such an ignition device, and FIG. 6 shows a method of mounting the igniter shown in FIG. 5 on an ignition coil portion of an internal combustion engine ignition device. As described above, in the ignition device for an internal combustion engine, the ignition coil unit and the igniter are indispensable to each other, and these two are used as a set.
【０００３】図５と図６において、点火装置は図示しな
いエンジン本体に設けられたプラグホールに１次と２次
コイルを埋設し、当該コイル部分直上であって、プラグ
ホールの外側にはイグナイタ１０が配置され、これらが
点火装置ケースに収納されている。図５に示すように、
当該イグナイタ１０はバッテリ等から電源供給を行う外
部接続端子２を備えるコネクタ１と、当該外部接続端子
２に接続されるイグナイタ金属端子９に接続されてお
り、当該イグナイタ１０は樹脂等の変形可能な弾性材か
らなるカバー１１により覆われた後に、イグナイタ１０
外観全体を充填用エポキシ樹脂１４で充填硬化され完成
品となる。In FIGS. 5 and 6, the ignition device has primary and secondary coils embedded in a plug hole provided in an engine body (not shown), and an igniter 10 is provided just above the coil portion and outside the plug hole. Are arranged in the ignition device case. As shown in FIG.
The igniter 10 is connected to a connector 1 having an external connection terminal 2 for supplying power from a battery or the like, and an igniter metal terminal 9 connected to the external connection terminal 2, and the igniter 10 is deformable such as resin. After being covered with the cover 11 made of an elastic material, the igniter 10
The entire appearance is filled with the filling epoxy resin 14 and cured to obtain a finished product.
【０００４】以上の通り、図６に示すイグナイタ１０の
点火コイル部１３への搭載においては、図５に示すよう
にイグナイタ１０の外部接続端子としてコネクタ１を別
途準備する必要があった。As described above, when the igniter 10 shown in FIG. 6 is mounted on the ignition coil unit 13, it is necessary to separately prepare the connector 1 as an external connection terminal of the igniter 10 as shown in FIG.
【０００５】上述したイグナイタ１０の点火コイル部１
３への搭載の際は、先ずイグナイタ１０をコネクタ１に
装着し、イグナイタ１０側面に設けられているイグナイ
タ金属端子９とコネクタ１に設けられた外部接続端子２
とを溶接等の手法により接合している。Ignition coil portion 1 of the igniter 10 described above.
At the time of mounting on the connector 3, first, the igniter 10 is mounted on the connector 1, and the igniter metal terminal 9 provided on the side surface of the igniter 10 and the external connection terminal 2 provided on the connector 1.
And are joined by a technique such as welding.
【０００６】このようにしてコネクタ１が装着されたイ
グナイタ−コネクタＡＳＳＹ１２は点火コイル部１３へ
と装着される。その後イグナイタ１０が搭載された点火
コイル部１３上部は、充填用エポキシ樹脂１４により充
填封止されることでイグナイタ１０の固定がなされてい
る。The igniter-connector ASSY 12 to which the connector 1 is thus mounted is mounted to the ignition coil unit 13. After that, the igniter 10 is fixed by filling and sealing the upper part of the ignition coil portion 13 on which the igniter 10 is mounted with a filling epoxy resin 14.
【０００７】また、一般に図５に示す従来の技術のイグ
ナイタ１０においては、イグナイタ内部に実装配置され
る部品は、単一面すなわち単層の基板面上に片面或いは
両面による実装がなされ、このため上述したイグナイタ
１０では、回路上の大電流部と小電流部が内部配線基板
上で互いに近接した状態となっている。[0007] Generally, in the conventional igniter 10 shown in FIG. 5, the components mounted and arranged inside the igniter are mounted on a single surface, that is, on a single-layer substrate surface by one side or both sides. In the igniter 10, the large current portion and the small current portion on the circuit are in close proximity to each other on the internal wiring board.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、上述し
たイグナイタ１０では、次のような問題が生じる。まず
１番目の問題として、外部接続端子２との接続は別部品
して用意するコネクタ１を用いて対応しなければなら
ず、イグナイタ１０自体を点火コイル部１３に設置する
前に、イグナイタ１０とコネクタ１との溶接等の手法に
よる電気的且つ機械的な接合が必要であった為、部品点
数の増大、溶接等の作業性の悪さ、及び溶接等に要する
工数の増加という課題が生じている。さらに述べれば、
上記構成ではボンディングポイントが外部端子数分要し
ており、このようにボンディング接合ポイントや溶接な
どの接合数が増えることで接合部での非接触等の問題が
生じ、従って当該接触部分の数の増加に比例して信頼性
が低くなるといった問題が生じる。However, the igniter 10 described above has the following problems. As the first problem, the connection with the external connection terminal 2 must be handled by using the connector 1 prepared as a separate component, and before the igniter 10 itself is installed in the ignition coil unit 13, Since electrical and mechanical joining by a method such as welding with the connector 1 is required, there are problems that the number of parts is increased, the workability such as welding is poor, and the man-hour required for welding is increased. . Furthermore,
In the above configuration, the number of bonding points is the same as the number of external terminals, and the problem of non-contact or the like at the bonding portion occurs due to the increase in the number of bonding bonding points or welding in this way, and therefore There is a problem that the reliability decreases in proportion to the increase.
【０００９】次に２番目の問題として、コネクタ１を接
合させたイグナイタ１０を固定する為に、点火コイル部
１３のイグナイタ１０搭載部を充填用エポキシ樹脂１４
により充填封止するが、イグナイタ１０自体はモールド
樹脂７によるモールディングがされただけの構造であ
り、充填用エポキシ樹脂１４の熱膨張収縮による応力を
緩和させる為には、別部品として用意されたカバー１１
を被せる必要があった。この点でも部品点数の増大、作
業性の悪さ、工数の増加に加え、信頼性についても課題
が生じている。Next, as a second problem, in order to fix the igniter 10 to which the connector 1 is joined, the igniter 10 mounting portion of the ignition coil portion 13 is filled with epoxy resin 14 for filling.
The igniter 10 itself has a structure only molded by the molding resin 7, and in order to relieve the stress due to thermal expansion and contraction of the filling epoxy resin 14, a cover prepared as a separate component. 11
I needed to cover it. In this respect as well, in addition to an increase in the number of parts, poor workability and an increase in man-hours, there are problems in reliability.
【００１０】また、３番目の問題として、イグナイタ１
０に付加価値を持たせようとして、構成部品を全て単一
面上の内部配線基板又はリードフレームに配置しようと
した場合、内部配線基板スペースを大きく取らねばなら
ずイグナイタ１０の省スペース化には限界があった。ま
た部品実装に内部配線基板を使用した場合は、片面或い
は両面実装の単一の内部配線基板上に部品が実装される
事から、内部配線基板の回路における大電流部と小電流
部が近接しており、イグナイタ１０動作時に発生する電
流の流れが、近接する導体パターンに作用し、これら電
磁誘導等の干渉がイグナイタ１０のノイズの原因になる
ことで１次電流遮断制御に悪影響を及ぼしていた。同時
にイグナイタ１０駆動時に内部実装部品から発生する熱
に関しても、単一面上に部品が配置されている事で影響
を受けやすいという点においても課題を残していた。The third problem is igniter 1
If all the components are to be placed on the internal wiring board or the lead frame on a single surface in order to add 0 to the added value, the internal wiring board space must be taken large and there is a limit to the space saving of the igniter 10. was there. Also, when an internal wiring board is used to mount components, the components are mounted on a single internal wiring board that is single-sided or double-sided. However, the current flow generated when the igniter 10 is operated acts on the adjacent conductor patterns, and the interference of these electromagnetic inductions causes noise in the igniter 10, which adversely affects the primary current cutoff control. . At the same time, the heat generated from the internally mounted components when the igniter 10 is driven has a problem in that it is easily affected by the components arranged on a single surface.
【００１１】本発明は上記課題に鑑み、部品点数、組み
立て工数を低減し、且つ熱応力を低減できるイグナイタ
を提供することを目的とする。In view of the above problems, it is an object of the present invention to provide an igniter capable of reducing the number of parts, the number of assembling steps, and the thermal stress.
【００１２】[0012]
【課題を解決するための手段】上記の課題を解決するた
め本発明では次のような構成とする。イグナイタを搭載
していた別部品としての外部接続端子用コネクタを廃止
し、イグナイタ自体に外部接続端子を一体化で形成した
ことを特徴とする。イグナイタにはセラミック等で構成
される内部配線基板上に電子部品がマウントされ、ＩＧ
ＢＴ及び放熱用ヒートシンクとともにプラスチックケー
ス内に装着される。この際イグナイタ内部の電子部品等
と外部接続端子との導通は、直接外部接続端子部とワイ
ヤボンディングを行うことで取ることが可能となってい
る。また、当該イグナイタの外装をプラスチックケース
としたり、イグナイタの表面にゴム系の緩衝材を塗布す
る。また、イグナイタの内部部品は内部配線基板５によ
り立体的に配線、配置され、大電流が流れる回路部と小
電流が流れる回路部とをそれぞれ分割して配置する。当
該回路の立体的配線、配置にはリードフレームを用いて
もよい。In order to solve the above problems, the present invention has the following configuration. The external connection terminal connector, which is a separate component equipped with the igniter, is abolished, and the external connection terminal is integrally formed on the igniter itself. The igniter has electronic components mounted on an internal wiring board made of ceramic, etc.
It is mounted in a plastic case together with a BT and a heat sink for heat dissipation. At this time, the electrical connection between the electronic components and the like inside the igniter and the external connection terminal can be obtained by directly performing wire bonding with the external connection terminal portion. Further, the exterior of the igniter is made into a plastic case, or a rubber-based cushioning material is applied to the surface of the igniter. Further, the internal parts of the igniter are three-dimensionally wired and arranged by the internal wiring board 5, and the circuit part in which a large current flows and the circuit part in which a small current flows are separately arranged. A lead frame may be used for the three-dimensional wiring and arrangement of the circuit.
【００１３】具体的には、請求項１においては、１次入
力端子を備えると共にイグナイタを配置するイグナイタ
ケースと、当該イグナイタケースの下側に点火コイル部
とを備える内燃機関用点火装置において、前記イグナイ
タケースに配置されるイグナイタと１次入力端子とがワ
イヤボンディングにより接続されることで一体成型され
たことを特徴とする内燃機関用点火装置とする。請求項
２では、前記イグナイタケースにモールド樹脂を充填
し、当該イグナイタケースが前記モールド樹脂の膨脹収
縮応力を吸収可能なプラスチック製とた請求項１に記載
の内燃機関用点火装置とする。請求項３では、前記イグ
ナイタケースにモールド樹脂を充填し、当該モールド樹
脂の表面にゴム系の緩衝材を塗布したことを特徴とする
請求項１記載の内燃機関用点火装置とする。請求項４で
は、前記イグナイタケースにモールド樹脂を充填し、所
定の位置に配置した後に点火装置ケース内に充填用エポ
キシ樹脂を注入硬化させる点火装置であって、当該モー
ルド樹脂もしくは充填用エポキシ樹脂の少なくとも一方
の樹脂中にゴム系の緩衝材を混入したことを特徴とする
請求項１記載の内燃機関用点火装置とする。請求項５で
は、１次入力端子を備えると共にイグナイタを配置する
イグナイタケースと、当該イグナイタケースの下側に点
火コイル部とを備える内燃機関用点火装置において、前
記イグナイタケース部にイグナイタを備え、当該イグナ
イタが実装基板またはリードフレームに駆動素子を有す
ることで形成され、当該実装基板またはリードフレーム
と１次入力端子とが立体配線により接続されたことを特
徴とする内燃機関用点火装置とする。請求項６では、イ
グナイタを形成する内部配線基板が大電流部用基板と小
電力部用基板とに分割されたことを特徴とする請求項５
に記載の内燃機関用点火装置とする。Specifically, in claim 1, an ignition device for an internal combustion engine, comprising: an igniter case having a primary input terminal and arranging an igniter; and an ignition coil portion below the igniter case. The ignition device for an internal combustion engine is characterized in that an igniter arranged in an igniter case and a primary input terminal are integrally molded by being connected by wire bonding. According to a second aspect of the present invention, there is provided the ignition device for an internal combustion engine according to the first aspect, wherein the igniter case is filled with a mold resin, and the igniter case is made of plastic capable of absorbing the expansion / contraction stress of the mold resin. According to a third aspect of the present invention, the ignition device for an internal combustion engine according to the first aspect is characterized in that the igniter case is filled with a mold resin, and a rubber-based cushioning material is applied to a surface of the mold resin. The ignition device according to claim 4, wherein the igniter case is filled with a molding resin, and the epoxy resin for filling is injected and cured in the ignition device case after being placed at a predetermined position. The ignition device for an internal combustion engine according to claim 1, wherein a rubber-based cushioning material is mixed in at least one of the resins. According to a fifth aspect of the present invention, in an ignition device for an internal combustion engine that includes an igniter case having a primary input terminal and in which an igniter is arranged, and an ignition coil section below the igniter case, the igniter case section includes an igniter. An ignition device for an internal combustion engine, characterized in that an igniter is formed by having a driving element on a mounting substrate or a lead frame, and the mounting substrate or the lead frame and a primary input terminal are connected by three-dimensional wiring. According to a sixth aspect of the present invention, the internal wiring board forming the igniter is divided into a large current section board and a small power section board.
The ignition device for an internal combustion engine according to 1.
【００１４】[0014]
【作用】上記構成により、イグナイタを点火装置に設置
する際に、別部品としてのコネクタ、及びイグナイタの
コネクタへの溶接工程が省略可能である。また、点火装
置内にイグナイタを固定させる為の充填用エポキシ樹脂
の熱膨張収縮による応力を、別部品としてのカバーを用
いることなく、イグナイタの外装としているプラスチッ
クケースのみで緩和可能である。With the above structure, when the igniter is installed in the ignition device, the connector as a separate component and the step of welding the igniter to the connector can be omitted. Further, the stress due to the thermal expansion and contraction of the filling epoxy resin for fixing the igniter in the igniter can be alleviated only by the plastic case which is the exterior of the igniter, without using a cover as a separate component.
【００１５】また、点火装置内にイグナイタを固定させ
る為の充填用エポキシ樹脂の熱膨張収縮による応力を、
別部品としてのカバーを用いることなく、ゴム系の緩衝
材により緩和可能である。Further, the stress due to the thermal expansion and contraction of the filling epoxy resin for fixing the igniter in the ignition device,
The cushioning material can be relaxed without using a cover as a separate component.
【００１６】また、内部実装基板又はリードフレーム等
を立体的に配線、配置することで、実装エリアを３次元
的に配置可能となり、実装スペースを有効活用出来るこ
とで、イグナイタの省スペース化が可能となる。また、
複数に分割した各々の内部配線基板を大電流回路と小電
流回路とに分けることで、イグナイタ動作時の電磁誘導
等による干渉を抑えることができ、耐熱性についても余
裕を持たせた設計を行うことが可能となる。Further, the mounting area can be arranged three-dimensionally by arranging and arranging the internal mounting board or the lead frame three-dimensionally, and the mounting space can be effectively utilized, so that the igniter space can be saved. Becomes Also,
By dividing each internal wiring board into a large current circuit and a small current circuit, it is possible to suppress interference due to electromagnetic induction etc. during igniter operation, and design with heat resistance margin. It becomes possible.
【００１７】[0017]
【実施例】本発明の第１の実施例を図１に示す。なお、
本発明においては、イグナイタは汎用のパワートランジ
スタやＩＧＢＴ等のパッケージ品ではなく、内部配線基
板上に駆動素子６等を配置したモールド前の部品を指
す。また、本発明の点火装置は、イグナイタと点火コイ
ル部１３とから構成され、両者は同一の点火装置ケース
に収容され、また、前記イグナイタはイグナイタケース
に収容後モールド樹脂により樹脂充填されている。FIG. 1 shows a first embodiment of the present invention. In addition,
In the present invention, the igniter does not mean a general-purpose package such as a power transistor or an IGBT but a component before molding in which the drive element 6 and the like are arranged on the internal wiring board. The ignition device of the present invention comprises an igniter and an ignition coil unit 13, both of which are housed in the same igniter case, and the igniter is housed in the igniter case and then filled with resin.
【００１８】本発明の第１の実施例を示す図１におい
て、イグナイタは、駆動制御用ＩＣが備わったアルミナ
等で形成されたセラミック等の内部配線基板５から構成
されている。当該内部配線基板５は、付加機能を持たせ
る為の回路パターンの印刷、及び電子部品のマウントが
成されており、放熱用ヒートシンク４の上に接着剤を用
いて接着されている。当該ヒートシンク４表面には、１
次電流の遮断または通電といったスイッチング駆動を行
うダーリントントランジスタ等で形成された駆動素子６
が設置されている。当該駆動素子６はＩＧＢＴで構成さ
れてもよい。これら内部配線基板５と駆動素子６及び放
熱用ヒートシンク４等のイグナイタを構成する部品は、
例えばＰＰＯやＰＰＴ、ＰＢＴ、ＰＥＴ等のプラスチッ
クにより形成されたイグナイタケース８内に収められて
いる。当該イグナイタケース８は外部接続端子２と接続
する為のコネクタ１を備えており、イグナイタと外部接
続端子２とが一体化で成形されている。当該イグナイタ
ケース８内に収められているイグナイタ部品と、外部接
続用端子２とはボンディングワイヤ３により電気的に接
続され、当該ワイヤボンディングを行った後に、当該イ
グナイタはモールド樹脂７にてイグナイタケース８を外
装としてモールディングされる。In FIG. 1 showing the first embodiment of the present invention, an igniter is composed of an internal wiring board 5 made of alumina or the like and provided with a drive control IC, such as ceramic. The internal wiring board 5 is printed with a circuit pattern for providing an additional function and mounted with electronic components, and is adhered onto the heat sink 4 for heat dissipation using an adhesive. 1 on the surface of the heat sink 4
Drive element 6 formed of a Darlington transistor or the like for performing switching drive such as interruption or energization of the next current
Is installed. The drive element 6 may be composed of an IGBT. The components forming the igniter, such as the internal wiring board 5, the drive element 6, and the heat sink 4 for heat dissipation are
For example, it is housed in an igniter case 8 made of plastic such as PPO, PPT, PBT, PET or the like. The igniter case 8 is provided with a connector 1 for connecting to the external connection terminal 2, and the igniter and the external connection terminal 2 are integrally formed. The igniter component housed in the igniter case 8 and the external connection terminal 2 are electrically connected by the bonding wire 3, and after the wire bonding is performed, the igniter case 8 is molded with the igniter case 8 It is molded as an exterior.
【００１９】当該イグナイタケース８を外装としてモー
ルディングされた当該イグナイタは、図２に示す点火装
置ケース内のイグナイタ搭載スペースに設置される際、
既に外部接続端子２がイグナイタケース８と一体化で形
成されている為、別部品としてのコネクタ１、イグナイ
タとコネクタとの溶接工程等が不要となり、部材点数の
削減、工数のダウン等が可能となる。When the igniter molded by using the igniter case 8 as an exterior is installed in the igniter mounting space in the ignition device case shown in FIG.
Since the external connection terminal 2 is already formed integrally with the igniter case 8, the connector 1 as a separate component, the welding process of the igniter and the connector, etc. are not required, and the number of members can be reduced and the man-hours can be reduced. Become.
【００２０】当該イグナイタは図２に示すように点火コ
イル部１３と電気的に接続された後に充填用エポキシ樹
脂１４にて充填、固定される。充填用エポキシ樹脂１４
の熱膨張収縮率は他の部材の熱膨張収縮率と比べて高い
が、当該充填用エポキシ樹脂１４の熱膨張収縮により発
生する応力は、当該イグナイタケース８により緩和され
るので、別部品としての従来用いていたイグナイタ用の
カバー１１を用いることなく、イグナイタ自体へ掛かる
応力が低減される。As shown in FIG. 2, the igniter is electrically connected to the ignition coil portion 13 and then filled and fixed with a filling epoxy resin 14. Epoxy resin for filling 14
Although the coefficient of thermal expansion and contraction of is higher than the coefficient of thermal expansion and contraction of other members, the stress generated by the coefficient of thermal expansion and contraction of the filling epoxy resin 14 is relieved by the igniter case 8, and therefore, as a separate component. The stress applied to the igniter itself can be reduced without using the igniter cover 11 that has been conventionally used.
【００２１】次に本発明の第２の実施例について説明す
る。第２の実施例を図３に示す。図３においては主要部
の構造は前記第１の実施例において述べたので、以下第
１の実施例との相違点のみを説明する。本第２の実施例
においては、ボンディングワイヤ３によりワイヤボンデ
ィングを行った後に、イグナイタケース８内をモールド
樹脂７によりモールディングし、当該イグナイタの表層
にはゴム系緩衝材１５を塗布する。Next, a second embodiment of the present invention will be described. The second embodiment is shown in FIG. In FIG. 3, since the structure of the main part has been described in the first embodiment, only the differences from the first embodiment will be described below. In the second embodiment, after wire bonding is performed with the bonding wire 3, the inside of the igniter case 8 is molded with the molding resin 7, and the rubber cushioning material 15 is applied to the surface layer of the igniter.
【００２２】当該イグナイタは図３に示す点火コイル部
１３と電気的に接続された後に充填用エポキシ樹脂１４
により充填、固定される。充填用エポキシ樹脂１４の熱
膨張収縮率は他の部材の熱膨張収縮率と比べて高いが、
充填用エポキシ樹脂１４の熱膨張収縮により発生する応
力は、当該イグナイタの表層の塗布されたゴム系緩衝材
１５により緩和されるので、別部品としてのイグナイタ
全体を覆う専用のカバー等を用いることなく、イグナイ
タ自体への応力が低減される。また別の例として、当該
ゴム系緩衝材１５は、充填用エポキシ樹脂１４の表面で
なくても、当該充填用エポキシ樹脂１４もしくはモール
ド樹脂７の少なくとも一方に混入することでも緩衝作用
が得られることから、当該ゴム系緩衝材１５を少なくと
も何れかの樹脂に混入してもよい。The igniter is electrically connected to the ignition coil portion 13 shown in FIG.
It is filled and fixed by. Although the thermal expansion and contraction rate of the filling epoxy resin 14 is higher than the thermal expansion and contraction rates of other members,
Since the stress generated by the thermal expansion and contraction of the filling epoxy resin 14 is relieved by the rubber-based cushioning material 15 applied to the surface layer of the igniter, it is not necessary to use a dedicated cover or the like for covering the entire igniter as a separate component. , The stress on the igniter itself is reduced. As another example, even if the rubber-based cushioning material 15 is not on the surface of the filling epoxy resin 14, it can be mixed with at least one of the filling epoxy resin 14 and the molding resin 7 to obtain a cushioning effect. Therefore, the rubber-based cushioning material 15 may be mixed with at least one of the resins.
【００２３】次に本発明の第３の実施例とする点火装置
を図４に示し説明するが、主要部において前記第１若し
くは第２の実施例として説明した部分については説明を
省略する。図４において、本発明のイグナイタは駆動制
御用ＩＣが備わったアルミナ等で形成されたセラミック
の内部配線基板５を搭載している。当該内部配線基板５
は、付加機能を持たせる為の回路パターンの印刷、及び
電子部品のマウントがなされており、大電流が流れる回
路部と、小電流が流れる回路部との複数に分けられ、各
々が電気的に接続するように上下に重ねる形態で、配線
基板が立体的に配線、配置されている。当該回路の立体
的配置、配線にはリードフレームを用いても良い。Next, an ignition device according to a third embodiment of the present invention will be described with reference to FIG. 4, but the description of the main parts described as the first or second embodiment will be omitted. In FIG. 4, the igniter of the present invention is equipped with a ceramic internal wiring board 5 formed of alumina or the like and equipped with a drive control IC. The internal wiring board 5
Is printed with a circuit pattern to provide additional functions and is mounted with electronic components.It is divided into a large current circuit part and a small current circuit part, each of which is electrically connected. The wiring boards are three-dimensionally wired and arranged so that they are vertically stacked so as to be connected. A lead frame may be used for the three-dimensional arrangement and wiring of the circuit.
【００２４】前記イグナイタ内部には放熱用ヒートシン
ク４が配置されており、その表面には１次電流の遮断ま
たは通電といったスイッチング駆動を行うダーリントン
トランジスタ等で形成された駆動素子６が設置されてい
る。A heat sink 4 for heat radiation is arranged inside the igniter, and a driving element 6 formed of a Darlington transistor or the like for performing switching driving such as interruption or energization of a primary current is provided on the surface thereof.
【００２５】当該イグナイタは、付加機能を持たせよう
として多数の部品配置を行おうとした場合においても、
内部配線基板５が立体的配線、配置になっていることで
スペース面で余裕を持たせることができ、イグナイタの
省スペース化が可能となる。Even when a large number of parts are arranged by the igniter in order to have an additional function,
Since the internal wiring board 5 is three-dimensionally wired and arranged, a space can be provided, and the igniter space can be saved.
【００２６】本第３の実施例のイグナイタは内部配線基
板５が立体的配線、配置となっており、それぞれの基板
が大電流部回路部と小電流回路部とに分けて設計されて
いる。このことからイグナイタが動作した時において
も、隣接するパターン間の干渉によって生ずる電磁誘導
を抑えることが可能となる。またイグナイタ動作時に発
熱部品から発せられる熱においても、内部配線基板５が
立体的に配線、配置されていることで伝搬が抑制され、
部品自体の耐熱性を考慮した場合余裕を持たせた設計が
出来るようになる。In the igniter of the third embodiment, the internal wiring board 5 has a three-dimensional wiring and arrangement, and each board is designed separately for a large current circuit section and a small current circuit section. For this reason, even when the igniter operates, it is possible to suppress electromagnetic induction caused by interference between adjacent patterns. In addition, the heat generated from the heat-generating components during the operation of the igniter is suppressed because the internal wiring board 5 is three-dimensionally wired and arranged.
When considering the heat resistance of the parts themselves, it becomes possible to design with a margin.
【００２７】[0027]
【発明の効果】以上のように、本発明の第１の実施例に
よれば、コネクタ及びイグナイタの外部接続端子２をイ
グナイタの外装と一体化で形成し、イグナイタ自体をイ
グナイタケース８内に収めることで、部品点数、及び組
み立て工数の低減が出来るようになり、これら組立て工
程の簡略化により、内燃機関点火装置を安価に供給でき
る。また充填用エポキシ樹脂１４の熱膨張収縮によりイ
グナイタへかかる応力も緩和でき、上記１番目の問題点
が解決できる。さらに述べれば、従来技術においては、
既にボンディングポイントが外部端子数分要しており、
このようにボンディング接合ポイントや溶接などの接合
数に比例して信頼性が低くなっていたが、本発明では当
該半導体アッセンブリの信頼性の向上を勘案し、その接
合ポイントを減らすと同時に、従来の構造接合で問題の
多かった双方が高熱容量の端子接合することによる溶接
端子の高頻度交換を、殆ど皆無にできる。As described above, according to the first embodiment of the present invention, the external connection terminals 2 of the connector and the igniter are integrally formed with the exterior of the igniter, and the igniter itself is housed in the igniter case 8. As a result, the number of parts and the number of assembling steps can be reduced, and the internal combustion engine ignition device can be inexpensively supplied by simplifying the assembling steps. Further, the stress applied to the igniter due to the thermal expansion and contraction of the filling epoxy resin 14 can be relaxed, and the first problem can be solved. Furthermore, in the prior art,
Bonding points have already been required for the number of external terminals,
As described above, the reliability was lowered in proportion to the number of bonding joints and the number of joints such as welding. However, in the present invention, in consideration of the improvement in the reliability of the semiconductor assembly, the number of joints is reduced and the conventional High frequency replacement of welding terminals due to terminal bonding with high heat capacity for both sides, which had many problems in structural bonding, can be almost eliminated.
【００２８】また第２の実施例によれば、ゴム系緩衝材
１５により充填用エポキシ樹脂１４の熱膨張収縮により
イグナイタへかかる応力が緩和でき、上記第２の問題点
が解決できる。Further, according to the second embodiment, the stress applied to the igniter due to the thermal expansion and contraction of the filling epoxy resin 14 can be relaxed by the rubber cushioning material 15, and the second problem can be solved.
【００２９】また第３の実施例によれば、また内部実装
基板５又はリードフレーム等を立体的に配線、配置する
事で、実装スペースを有効活用出来イグナイタの省スペ
ース化が可能となり、イグナイタ動作時の電磁誘導等に
よる干渉を抑制し、耐熱性についても余裕を持たせた設
計が行え、上記第３の問題点が解決できる。According to the third embodiment, the internal mounting board 5 or the lead frame is three-dimensionally wired and arranged, so that the mounting space can be effectively used, and the igniter can be saved. It is possible to suppress interference due to electromagnetic induction and the like, and to design with a margin in heat resistance, so that the third problem can be solved.
【図１】 本発明の第１の実施例を表すイグナイタの構
造断面図である。FIG. 1 is a structural cross-sectional view of an igniter showing a first embodiment of the present invention.
【図２】 図１のイグナイタを点火装置に搭載した断面
図である。FIG. 2 is a cross-sectional view of the igniter of FIG. 1 mounted on an ignition device.
【図３】 本発明の第２の実施例を表すイグナイタの構
造断面図である。FIG. 3 is a structural sectional view of an igniter showing a second embodiment of the present invention.
【図４】 本発明の第３の実施例を表すイグナイタの構
造断面図である。FIG. 4 is a structural sectional view of an igniter showing a third embodiment of the present invention.
【図５】 従来のイグナイタの構造断面図である。FIG. 5 is a structural cross-sectional view of a conventional igniter.
【図６】 図５のイグナイタを点火装置に搭載した断面
図である。FIG. 6 is a sectional view of the igniter of FIG. 5 mounted on an ignition device.
図において同一符号は同一、又は相当部分を示す。 １ コネクタ ２ 外部接続端子 ３ ボンディングワイヤ ４ 放熱用ヒートシンク ５ 内部配線基板 ６ 駆動素子 ７ モールド樹脂 ８ イグナイタケース ９ イグナイタ金属端子 １０ イグナイタ １１ カバー １２ イグナイタ−コネクタＡＳＳＹ １３ 点火コイル部 １４ 充填用エポキシ樹脂 １５ ゴム系緩衝材 In the drawings, the same reference numerals indicate the same or corresponding parts. 1 connector 2 External connection terminal 3 Bonding wire 4 Heat sink for heat dissipation 5 Internal wiring board 6 Drive element 7 Mold resin 8 igniter case 9 Igniter metal terminal 10 Igniter 11 cover 12 Igniter-Connector ASSY 13 Ignition coil part 14 Epoxy resin for filling 15 Rubber-based cushioning material
Claims (6)
配置するイグナイタケースと、当該イグナイタケースの
下側に点火コイル部とを備える内燃機関用点火装置にお
いて、前記イグナイタケースに配置されるイグナイタと
１次入力端子とがワイヤボンディングにより接続される
ことで一体成型されたことを特徴とする内燃機関用点火
装置。1. An igniter case for an internal combustion engine, comprising: an igniter case having a primary input terminal and having an igniter arranged therein; and an ignition coil unit provided below the igniter case. An ignition device for an internal combustion engine, which is integrally molded by being connected to a next input terminal by wire bonding.
填し、当該イグナイタケースが前記モールド樹脂の膨脹
収縮応力を吸収可能なプラスチック製とた請求項１に記
載の内燃機関用点火装置。2. The ignition device for an internal combustion engine according to claim 1, wherein the igniter case is filled with a mold resin, and the igniter case is made of plastic capable of absorbing expansion and contraction stress of the mold resin.
填し、当該モールド樹脂の表面にゴム系の緩衝材を塗布
したことを特徴とする請求項１記載の内燃機関用点火装
置。3. The ignition device for an internal combustion engine according to claim 1, wherein the igniter case is filled with a mold resin, and a rubber-based cushioning material is applied to the surface of the mold resin.
填し、所定の位置に配置した後に点火装置ケース内に充
填用エポキシ樹脂を注入硬化させる点火装置であって、
当該モールド樹脂もしくは充填用エポキシ樹脂の少なく
とも一方の樹脂中にゴム系の緩衝材を混入したことを特
徴とする請求項１記載の内燃機関用点火装置。4. An igniter in which a mold resin is filled in the igniter case, the epoxy resin for filling is injected and cured in the igniter case after being placed at a predetermined position,
The ignition device for an internal combustion engine according to claim 1, wherein a rubber-based cushioning material is mixed in at least one of the mold resin and the filling epoxy resin.
配置するイグナイタケースと、当該イグナイタケースの
下側に点火コイル部とを備える内燃機関用点火装置にお
いて、前記イグナイタケース部にイグナイタを備え、当
該イグナイタが実装基板またはリードフレームに駆動素
子を有することで形成され、当該実装基板またはリード
フレームと１次入力端子とが立体配線により接続された
ことを特徴とする内燃機関用点火装置。5. An ignition device for an internal combustion engine, comprising: an igniter case having a primary input terminal and in which an igniter is arranged; and an ignition coil section below the igniter case, wherein the igniter case section is provided with an igniter. An ignition device for an internal combustion engine, wherein an igniter is formed by having a driving element on a mounting substrate or a lead frame, and the mounting substrate or the lead frame and a primary input terminal are connected by a three-dimensional wiring.
流部用基板と小電力部用基板とに分割されたことを特徴
とする請求項５に記載の内燃機関用点火装置。6. The ignition device for an internal combustion engine according to claim 5, wherein the internal wiring board forming the igniter is divided into a high current section board and a low power section board.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002111001A JP2003309028A (en) | 2002-04-12 | 2002-04-12 | Internal-combustion engine ignition unit |
| EP03002463A EP1353066B1 (en) | 2002-04-12 | 2003-02-05 | Ignition device for internal combustion engine |
| DE60329647T DE60329647D1 (en) | 2002-04-12 | 2003-02-05 | Ignition device for an internal combustion engine |
| US10/359,103 US6851417B2 (en) | 2002-04-12 | 2003-02-06 | Ignition device for internal combustion engine |
| CN03104177A CN1451862A (en) | 2002-04-12 | 2003-02-13 | Ignition device for IC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002111001A JP2003309028A (en) | 2002-04-12 | 2002-04-12 | Internal-combustion engine ignition unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003309028A true JP2003309028A (en) | 2003-10-31 |
Family
ID=28449992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002111001A Pending JP2003309028A (en) | 2002-04-12 | 2002-04-12 | Internal-combustion engine ignition unit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6851417B2 (en) |
| EP (1) | EP1353066B1 (en) |
| JP (1) | JP2003309028A (en) |
| CN (1) | CN1451862A (en) |
| DE (1) | DE60329647D1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175096A (en) * | 2007-01-17 | 2008-07-31 | Diamond Electric Mfg Co Ltd | Igniter |
| JP2008248782A (en) * | 2007-03-30 | 2008-10-16 | Diamond Electric Mfg Co Ltd | Igniter |
| JP2009117487A (en) * | 2007-11-02 | 2009-05-28 | Diamond Electric Mfg Co Ltd | Ignition coil for internal- combustion engine |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005036445A1 (en) * | 2005-08-03 | 2007-02-15 | Robert Bosch Gmbh | Ignition coil for an internal combustion engine comprises a damping composition partially surrounded by an insulating composition which fills intermediate spaces in a housing |
| JP2008202453A (en) * | 2007-02-19 | 2008-09-04 | Denso Corp | Igniter for spark plug |
| DE102010039587A1 (en) * | 2010-08-20 | 2012-02-23 | Robert Bosch Gmbh | Ignition device with improved thermal behavior |
| DE102010062349A1 (en) * | 2010-12-02 | 2012-06-06 | Robert Bosch Gmbh | Ignition coil with integrated electronics |
| US9341157B2 (en) * | 2012-12-17 | 2016-05-17 | Jake Petrosian | Catalytic fuel igniter |
| JP6409484B2 (en) * | 2014-10-10 | 2018-10-24 | 株式会社デンソー | Ignition coil for internal combustion engine |
| CN112088247B (en) * | 2018-05-14 | 2022-02-22 | 三菱电机株式会社 | Ignition coil device for internal combustion engine |
| JP7232027B2 (en) * | 2018-12-04 | 2023-03-02 | ダイヤゼブラ電機株式会社 | Ignitor assembly and igniter unit |
| JP7388912B2 (en) * | 2019-12-23 | 2023-11-29 | ダイヤゼブラ電機株式会社 | igniter |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5315982A (en) * | 1990-05-12 | 1994-05-31 | Combustion Electromagnetics, Inc. | High efficiency, high output, compact CD ignition coil |
| JPH0422762A (en) * | 1990-05-16 | 1992-01-27 | Mitsubishi Electric Corp | Igniter |
| JPH0729746A (en) * | 1993-07-09 | 1995-01-31 | Mitsubishi Electric Corp | Ignition coil device for internal combustion engine |
| US5558074A (en) * | 1994-07-28 | 1996-09-24 | Hitachi, Ltd. | Ignition device for internal-combustion engine |
| JP3550631B2 (en) * | 1996-03-22 | 2004-08-04 | 株式会社デンソー | Ignition coil and method of manufacturing the same |
| EP1225604A3 (en) * | 1997-05-23 | 2002-08-28 | Hitachi, Ltd. | Ignition coil for use in engine and engine having plastic cylinder head cover |
| JP3756691B2 (en) * | 1999-03-18 | 2006-03-15 | 株式会社日立製作所 | Resin-sealed electronic device for internal combustion engine |
| JP2000294692A (en) * | 1999-04-06 | 2000-10-20 | Hitachi Ltd | Resin-sealing type electronic device and manufacture of the same, ignition coil for internal combustion engine using the same device |
| JP3866880B2 (en) * | 1999-06-28 | 2007-01-10 | 株式会社日立製作所 | Resin-sealed electronic device |
| DE19933335C2 (en) * | 1999-07-16 | 2002-11-14 | Volkswagen Ag | Electronic ignition system for internal combustion engines |
| JP3513063B2 (en) * | 1999-12-01 | 2004-03-31 | 株式会社日立製作所 | Ignition device for internal combustion engine |
| DE20020737U1 (en) * | 2000-12-07 | 2002-04-18 | Robert Bosch Gmbh, 70469 Stuttgart | Ignition coil for internal combustion engines |
-
2002
- 2002-04-12 JP JP2002111001A patent/JP2003309028A/en active Pending
-
2003
- 2003-02-05 EP EP03002463A patent/EP1353066B1/en not_active Expired - Lifetime
- 2003-02-05 DE DE60329647T patent/DE60329647D1/en not_active Expired - Lifetime
- 2003-02-06 US US10/359,103 patent/US6851417B2/en not_active Expired - Lifetime
- 2003-02-13 CN CN03104177A patent/CN1451862A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175096A (en) * | 2007-01-17 | 2008-07-31 | Diamond Electric Mfg Co Ltd | Igniter |
| JP2008248782A (en) * | 2007-03-30 | 2008-10-16 | Diamond Electric Mfg Co Ltd | Igniter |
| JP2009117487A (en) * | 2007-11-02 | 2009-05-28 | Diamond Electric Mfg Co Ltd | Ignition coil for internal- combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1353066B1 (en) | 2009-10-14 |
| US6851417B2 (en) | 2005-02-08 |
| EP1353066A2 (en) | 2003-10-15 |
| CN1451862A (en) | 2003-10-29 |
| EP1353066A3 (en) | 2004-06-16 |
| DE60329647D1 (en) | 2009-11-26 |
| US20030192519A1 (en) | 2003-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9576913B2 (en) | Semiconductor device and manufacturing method of semiconductor device | |
| CN104425435B (en) | The substrate chip arrangement of overmolded with radiator | |
| KR920005463B1 (en) | Seating structure of automobile electronic circuit | |
| EP2191506B1 (en) | Wrap-around overmold for electronic assembly | |
| US7528469B2 (en) | Semiconductor equipment having multiple semiconductor devices and multiple lead frames | |
| JP2000245170A (en) | Semiconductor module, power conversion device using the same and manufacture thereof | |
| JP2006190726A (en) | Electronic controller and its manufacturing method | |
| JP2001153017A (en) | Ignition device of internal combustion engine | |
| JP2003309028A (en) | Internal-combustion engine ignition unit | |
| JPH0722576A (en) | Semiconductor power module and composite board and manufacture of semiconductor power module | |
| JP5450192B2 (en) | Power module and manufacturing method thereof | |
| JP2001015682A (en) | Resin sealed electronic device | |
| CN110914975B (en) | Power semiconductor module | |
| CN216930700U (en) | Power module | |
| JP2004207432A (en) | Power module | |
| JP5338797B2 (en) | Electronic equipment | |
| JP3886736B2 (en) | Ignition device for internal combustion engine and package with electronic components used therein | |
| CN114664799A (en) | Power module, method for manufacturing power module, inverter, and DC/DC converter | |
| JP2012129305A (en) | Electronic apparatus | |
| JPH0685126A (en) | Semiconductor device | |
| JP2004048084A (en) | Semiconductor power module | |
| WO2021261056A1 (en) | Power module | |
| US20220108959A1 (en) | Semiconductor module | |
| US20230274994A1 (en) | Power electronics module, electrical system having such a module, corresponding manufacturing methods | |
| JP2000243639A (en) | Ignition control device of internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050411 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080314 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080325 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20081007 |